Mounting sleeve for shoe stretcher blocks



A. PANOS Jan. 31, 1939.

MOUNTING SLEEVE FOR SHOE STRETGHER BLOCKS Fil ed Jam 1, 1938 v Patented Jan. 31, 1939 UNITED STATES ZMESAM PATENT @FFEQE MOUNTING SLEEVE FOR SHOE STRETCHER LOCKS 6 Claims.

This invention relates to a mounting sleeve for shoe stretcher blocks, whereby an operator may interchange the blocks to conform with the type or size of shoe to be stretched.

Still another object is to provide a novel device of the character stated in which the shoe stretcher can be hammered into position by striking the end of the control shaft and without injuring the blocks of the stretcher.

Still another object is to provide a novel means of holding the blocks in position, this means can be disassembled to permit removal of the blocks.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description and the appended claims.

In the drawing Figure l is a fragmentary longitudinal sectional view of the mounting sleeve and the stretcher blocks mounted thereon.

Figure 2 is a fragmentary longitudinal sectional view of a modified form of mounting sleeve.

Figure 3 is a fragmentary longitudinal sectional view of still another modified form of the mounting sleeve.

Figure 4 is a perspective view of a ferrule which engages the stretcher blocks.

This invention is an improvement of my Patent No. 2,104,839, issued January 11, 1938, and No. 2,069,537, issued February 2, 1937.

Referring more particularly to the drawing, the numeral I indicates a shoe stretcher which comprises a pair of blocks 2, 3. These blocks are adapted to be inserted into a shoe in the usual 35 and well known manner. A shaft 4 extends between the blocks 2, 3, and the inner end of this shaft is threaded as shown at 5. A wedge 6 is mounted on the threaded portion of the shaft, and on rotation of the shaft, the wedge is moved forwardly to expand the blocks 2, 3. The shaft 4 is threaded by means of the usual handle which is not shown.

In the modification shown in Figure 1, a sleeve 1 is fitted on the shaft 4, and this sleeve is provided with outwardly extending pins 8, 8, which fit into recesses 9 in the blocks 2, 3, for the purpose of holding these blocks in proper aligned position.

A cylindrical boss II] is formed on, or fixedly attached to the shaft 4 and this boss fits into a bore in the sleeve 1 and the forward end of the boss shoulders in the sleeve. The boss and shaft 4 are held against longitudinal movement relative to the sleeve 1 by means of the annular nut H, which surrounds the shaft 4 and screws into the outer end of the sleeve 1. The inner end of the nut bears against the outer end of the boss in, thereby securely holding the shaft within the sleeve. When the shaft d is struck with a hammer, or the like, the force of the blow is'imparted to the sleeve '11, and thence to the blocks 2, 3. The sleeve and shaft are made of metal and will, therefore, withstand the shock of a blow.

As shown in Figure 2, the cylindrical boss l2 on the shaft 4 fits into suitably shafted recesses H3 in the blocks, whereby the drive of the shaft l is imparted directly to the blocks. An annular nut M screws on to threads IE on the shaft 4 and the inner end of this nut bears against the boss I2. The nut also bears against the outer ends of the blocks 2, 3, or against the ferrule l6 as shown.

In Figure 1, the nut II also bears against the blocks or against the ferrule for the further purpose of holding the blocks 2, 3, in position and in alignment. v

In Figure 3 the sleeve H is similar in construction to the sleeve 1. It is provided with the same type of pins as the sleeve 1 and also receives the same type of cylindrical boss l8 as is shown at H) in Figure l.

A spacing ring I9 surrounds the shaft 4 and the inner end of this ring bears against the boss H3. The ring is held against the boss by the spring ferrule 20, which ferrule engages the outer end of both of the blocks 2, 3, and is provided with inwardly projecting fingers 2! to engage the blocks. The ferrule closely surrounds the shaft 4 and thus the ringlll is held in position to prevent relative longitudinal movement of the shaft and sleeve.

Having described my invention, I claim:

1. A mounting sleeve for shoe stretcher blocks, comprisng a pair of blocks, a shaft extending into the blocks, expanding means mounted on the shaft and operable thereby, a boss on the shaft, said boss bearing against the sleeve, pins on said sleeve, said pins extending into the blocks, and means engageable with the boss, whereby said sleeve and shaft are held against relative longitudinal movement.

2. A mounting sleeve for shoe stretcher blocks, comprising a pair of blocks, a shaft extending into the blocks, expanding means mounted on the shaft and operable thereby, a boss on the shaft, said boss bearing against the sleeve, pins on said sleeve, said pins extending into the blocks, and means engageable with the boss, whereby said sleeve and shaft are held against relative longitudinal movement, said means comprising a nut bearing against the boss.

3. A mounting sleeve for shoe stretcher blocks, comprising a pair of blocks, a shaft extending into the blocks, expanding means mounted on the shaft and operable thereby, a boss on the shaft, said boss bearing against the sleeve, pins on said sleeve, said pins extending into the blocks, means connecting the blocks whereby the blocks are held on the sleeve, and means engageable with the boss, whereby said sleeve and shaft are held against relative longitudinal movement, said means comprising a nut bearing against the boss, said nut being threaded into the sleeve, the head of said nut being engageable with the means connecting the blocks.

4. A mounting sleeve for shoe stretcher blocks, comprising a pair of blocks, a shaft extending into the blocks, expanding means mounted on the shaft and operable thereby, a boss on the shaft, said boss bearing against the sleeve, pins on said sleeve, said pins extending into the blocks, and means engageable with the boss, whereby said sleeve and shaft are held against relative longitudinal movement, said means comprising a sleeve and a ferrule engageable with the blocks and surrounding the shaft.

5. A mounting sleeve for shoe stretcher blocks comprising a pair of blocks, a shaft extending into the blocks, block expanding means mounted on the shaft and operable thereby, a boss on the shaft, said boss fitting into the blocks and means engaging the boss and the blocks, whereby said blocks are held in position on the shaft, and a ferrule engaging the blocks to hold the blocks on the shaft.

6, A mounting sleeve for shoe stretcher blocks comprising a pair of blocks, a shaft extending into the blocks, block expanding means mounted on the shaft and operable thereby a ferrule engaging the blocks, a boss on the shaft, said boss fitting into the blocks and means engaging the boss and the blocks, whereby said blocks are held in position on the shaft, said means comprising a nut, said nut surrounding the shaft, the inner end of the nut bearing against the boss and the head of the nut bearing against the ferrule.

APOSTOLE PANOS, 

